King Charles III inheritance and investment, how rich is UK's new monarch?

When King Charles III and his wife, the Queen Consort Camilla, are crowned on May 6, the coronation ceremony will glitter with the Crown Jewels and other historic symbols of the monarchy's vast wealth.

King Charles' net worth has soared to about $2.3 billion, according to The Guardian, which said it worked with 12 experts to undertake the first "comprehensive audit" of the king's assets, which range from country estates to race cars and jewels.

Yet among his most valuable assets is something intangible: an exemption for Charles from the U.K.'s inheritance tax, which otherwise would have taken a 40% bite out of his inherited assets. Queen Elizabeth II was worth $500 million when she passed away last year, largely from her ownership of Balmoral Castle in Scotland and Sandringham House in England, as well as art, jewels, investments and real estate, Forbes estimated last year.

Not everyone pegs Charles' wealth at the same sky-high valuation as The Guardian. The U.K.'s Sunday Times estimated his net worth at about $750 million. Part of the challenge in assessing the king's wealth is that many of his financial holdings aren't publicly disclosed, while other assets that may appear to be owned by the monarchy are in fact property of the U.K., the Guardian noted.

Here's what we know about King Charles' wealth.